Basic introduction to the Atlas UpdatePanel

This is a short tutorial on how to use the new "Atlas" UpdatePanel on your ASP.NET pages. It's simple, easy, and fun.

Introduction

Welcome! I have left adopting Atlas far too late as far as I'm concerned. It is so powerful and yet so easy. I didn't have a lot of time on my hands, so I thought getting to use this new technology would require a lot of my time and it didn't.

This article will give you a quick jumpstart into the amazing world of Atlas!!!

So, when the user selects a different country, the province drop down reloads. Now usually, you'd have a postback to the server and the whole screen would reload. Not anymore. Simply select a different country; now, the provinces magically change without the postback.

Additional events to update your panel

The second part of the magic is, let's say, you have a button on the form somewhere that reloads both dropdowns, all you need to do is add a trigger to the UpdatePanel as follows:

Share

About the Author

I have a year and half's experience in using the dotNet Framework. I enjoy trying to get my ASP.Net applications to perform as fast as possible due the fact that bandwidth shortages are very common here in South Africa.

I make extensive use of C#, ASP.Net, Javascripting, MSSQL and recently the beta's of ATLAS.

I also love playing XBOX360, guitar, PC games and I listen to mostly hard rock

Comments and Discussions

hui,i am new one to ajax.here i want to populate dropdown in update control panel for without post bach.here my requirement is change the selectindex of the first dropdown display related values at second dropdown without postback.